[PATCH pve-cluster 1/2] fix #6501: api: cluster create: allow cluster names up to 32 characters

[Kefu Chai <k.chai@proxmox.com>]

The 15 character limit was added in 2011, back when clusters ran on
cman. corosync 3, corosync-qdevice and pmxcfs have no such limit, and
the reporter says a longer name works for them after changing it in
corosync.conf by hand.

With a QDevice, the cluster name is also the CN of the cluster's TLS
certificate, which qnetd checks. RFC 5280 caps a CN at 64 characters.

Raise the limit to 32. That covers the requested 25 with room to spare.

Signed-off-by: Kefu Chai <k.chai@proxmox.com>
---
 src/PVE/API2/ClusterConfig.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PVE/API2/ClusterConfig.pm b/src/PVE/API2/ClusterConfig.pm
index bbed40e..c634ec9 100644
--- a/src/PVE/API2/ClusterConfig.pm
+++ b/src/PVE/API2/ClusterConfig.pm
@@ -102,7 +102,7 @@ __PACKAGE__->register_method({
                 description => "The name of the cluster.",
                 type => 'string',
                 format => 'pve-node',
-                maxLength => 15,
+                maxLength => 32,
             },
             nodeid => get_standard_option('corosync-nodeid'),
             votes => {
-- 
2.47.3